VS033 first timer

Hello everyone, We are off to Antigua, The Beach Club at St James on saturday 4th september, have been reading forums for sometime and have taken plunge to register. Has anyone any hints on how to calm my nerves before flight, I am not worried about the flight, its the airport, went to Kenya a couple of years ago and had panic attack in airport, nearly didn't get on flight, but once I was on plane I was fine. I would be really gratefull for any help.